Finding the Fourth Proportional to 3,131,245,463.22, 4,696,869,525.26 and 920,455,331.90
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Solution
The fourth proportional to 3,131,245,463.22, 4,696,869,525.26 and 920,455,331.90 is: 1,380,683,388.94
Step by Step Solution
- Step 1: Write the proportion equation
3,131,245,463.22 : 4,696,869,525.26 = 920,455,331.90 : x - Step 2: Convert to fraction form
3,131,245,463.22/4,696,869,525.26 = 920,455,331.90/x - Step 3: Cross multiply
3,131,245,463.22x = 4,696,869,525.26 × 920,455,331.90 - Step 4: Simplify right side
3,131,245,463.22x = 4,323,258,597,764,188,672 - Step 5: Solve for x
x = 4,323,258,597,764,188,672/3,131,245,463.22 - Step 6: Final answer
x = 1,380,683,388.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.